Wild Horse BBQ, south of Sallysaw a few miles, is/was famous for BBQ, if it is still open? It's been years since I was there, but it is good BBQ, and a junky old building, buy that just adds to the mistique!My Place Bar-B-Que in Muskogee is really good, or it was back in the day. I looked of Trip advisor and the reviews are still really good. I preferred the one on the east side.
Hamlin's was good okie-mex back in the day, but it ain't for everyone. Probably would not recommend for someone just passing thru.